3D printing pen



FIG. 1 is a rear, bottom, left hand perspective view of a 3D printingpen showing our design.

FIG. 2 is a rear, top, right hand perspective view thereof.

FIG. 3 is a front elevation view thereof.

FIG. 4 is a rear elevation view thereof.

FIG. 5 is a left side elevation view thereof.

FIG. 6 is a right side elevation view thereof.

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines in the drawings are employed to show unclaimed portionsof the 3D printing pen, and form no part of the claimed design.

CLAIM The ornamental design for a 3D printing pen, as shown anddescribed.